Home / 280,851,652.67-421,317,778.13-86,780,013.71

Finding the Fourth Proportional to 280,851,652.67, 421,317,778.13 and 86,780,013.71

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Solution

The fourth proportional to 280,851,652.67, 421,317,778.13 and 86,780,013.71 is: 130,182,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,851,652.67 : 421,317,778.13 = 86,780,013.71 : x
  2. Step 2: Convert to fraction form
    280,851,652.67/421,317,778.13 = 86,780,013.71/x
  3. Step 3: Cross multiply
    280,851,652.67x = 421,317,778.13 × 86,780,013.71
  4. Step 4: Simplify right side
    280,851,652.67x = 36,561,962,559,847,648
  5. Step 5: Solve for x
    x = 36,561,962,559,847,648/280,851,652.67
  6. Step 6: Final answer
    x = 130,182,472.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.